He works it out with a pencil.
They work it out with a pencil!
If it doesn't make you look smart, it's blunt.
Show your work.
Nostril-damus. &nbsp Works better if you read the joke out loud.
A
A tan gent.
They work it out with a pencil.
How does a mathematician cure her constipation She works it out with a pencil.
Get some furniture
Because she can't get rid of the Y chromosome